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Implement Send + Sync for CudaStream #254

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Implement Send + Sync for CudaStream #254

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18 changes: 18 additions & 0 deletions src/driver/safe/core.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -484,6 +484,9 @@ pub struct CudaStream {
device: Arc<CudaDevice>,
}

unsafe impl Send for CudaStream {}
unsafe impl Sync for CudaStream {}

impl CudaDevice {
/// Allocates a new stream that can execute kernels concurrently to the default stream.
///
Expand Down Expand Up @@ -906,6 +909,8 @@ impl<R: RangeBounds<usize>> RangeHelper for R {

#[cfg(test)]
mod tests {
use std::thread;

use super::*;

#[test]
Expand All @@ -930,4 +935,17 @@ mod tests {
assert!(unsafe { slice.transmute_mut::<f32>(25) }.is_some());
assert!(unsafe { slice.transmute_mut::<f32>(26) }.is_none());
}

#[test]
fn test_send_dev() {
let dev = CudaDevice::new(0).unwrap();
thread::spawn(|| dev);
}

#[test]
fn test_send_stream() {
let dev = CudaDevice::new(0).unwrap();
let stream = dev.fork_default_stream().unwrap();
thread::spawn(|| stream);
}
}
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